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Sean de Wolski


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MathWorks

5,653 total contributions since 2004

I like to be outside. But if I'm inside, I like to be using MATLAB.

I'm a Senior Application Engineer at MathWorks and civil/structural engineer by education.

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Contributions in
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Answered
Retrain model, Classification Learner
When you export the model, there's an option to generate a function. This function can be used to retrain the model on new data...

6 days ago | 1

| accepted

Answered
drawellipse not working, can't reproduce example
which -all drawellipse Looks like you're shadowing this.

6 days ago | 0

| accepted

Published


digCircs
Sean‘s pick this week is digcircs by Graham W Griffiths.   My pick this week is a really cool visualization of the numbers...

12 days ago

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Answered
How to share and update property value across different objects.
Put a breakpoint on this line: cgmObj.set_interstitial_BG(val); And see what cgmObj is and if it has a set_interstitial_BG(val...

19 days ago | 0

Published


Determining next available file name
Jiro‘s Pick this week is nextname by Stephen Cobeldick.Stephen is no stranger in the MATLAB user community arena. As of...

19 days ago

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Answered
Convert .rpt to .m file?
You can use the rpt file with the new APIs https://www.mathworks.com/help/releases/R2019b/rptgen/ug/mlreportgen.report.rptfile-c...

20 days ago | 0

Answered
Plotting the density of latitude and longitude points as a heat map on geographic data
Look at geodensityplot https://www.mathworks.com/help/releases/R2019b/matlab/ref/geodensityplot.html

20 days ago | 0

Solved


Aquiles y la tortuga
Contaba Zenón en su famosa paradoja que un día Aquiles, el guerrero griego más veloz de la Hélade, se enfrentó a una pequeña tor...

26 days ago

Published


2019 in Review
It’s that time of year again; 2019 is coming to a close as are the two thousand teens.  During the past decade, I started...

30 days ago

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Answered
How to create subplots of findchangepts function?
Take a look at the find change points live task which will generate the code for you for the plot you're looking for. Copy and ...

1 month ago | 1

| accepted

Answered
Directly open custom documentation
web(fullfile(docroot, '3ptoolbox/toolbox_name/doc/Index.html')) You can get this by navigating to your custom doc page's Index,...

1 month ago | 0

Published


App for calculus students (one-variable plotting)
Jiro‘s Pick this week is ez plotter by Martin C.For my work, I spend a lot of my time thinking about how MATLAB can help...

1 month ago

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Answered
How to set the variable formats in a Report Generator table?
In R2019b, the https://www.mathworks.com/help/releases/R2019b/rptgen/ug/mlreportgen.report.matlabvariable-class.html has a Numer...

1 month ago | 0

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Answered
Using timer, How can I cleanly exit a function execution, when the timer fires in MATLAB?
Why use a timer for this? In the start of your function, start a tic t = tic Then periodically check if toc(t)>2 ...

2 months ago | 0

Published


Minimally Bounded Rectangles, and more!
Brett‘s Pick this week is A suite of minimal bounding objects, by John D’Errico. I also give a shout-out to julien diener,...

2 months ago

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Published


Py_Addpath
Sean‘s pick this week is py_addpath directory matlab_too by Eric Fields. Using Python with MATLAB Do you have some Python...

2 months ago

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Answered
Unable to save 1024 x 1280 cell array of cfit objects.
If I were you, I'd just store a,b,c,and d, as matrices directly then when necessary construct the cfit object on the fly with th...

2 months ago | 0

| accepted

Answered
How can I switch programatically that my model uses base workspace instead of data dicitonary?
I think you just set "DataDictionary" to {''}. https://www.mathworks.com/help/releases/R2019b/simulink/slref/model-parameters....

2 months ago | 0

| accepted

Answered
How to detect start points and end points of plateaus in graph plotted from a data set?
Maybe look at ischange or the change point detection live task in 19b? https://www.mathworks.com/help/matlab/ref/findchangepo...

2 months ago | 0

Answered
how to make a heatmap for a monthly time serie?
Convert your x values to datetime. Then heatmap will just work: dt = datetime('now'):hours(1):datetime('tomorrow'); v = rand(...

2 months ago | 1

Answered
Is there an easy way to build a test suite from all tests in a folder containing multiple packages?
Have you considered adopting projects? I'd recommend it (for most things and especially for this use case) then you can just cr...

2 months ago | 0

Answered
How do i create a prototype pulse using zeros and ones?
This ought to do part 1: pulse = rem(ones(1,14).*(1:14),13)+zeros(1,14)>2

2 months ago | 0

Answered
First Col to Rep Date in Double Array
Use a timetable and stackedplot.

2 months ago | 0

Answered
Question: How to Read multiple CSV tables?
ds = datastore('sess*') % Manipulate properties of datastore as necessary (variable names, types, selected) T = readall(ds)

2 months ago | 1

Answered
Define start and end dates when selecting from file
Look at creating a timetable and then using timerange to index into it. doc timetable doc timerange

2 months ago | 0

Answered
date into double then back to date in loop
You should really look at creating a datetime and using its various properties and methods instead of datenum or datestr. Can y...

2 months ago | 0

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Published


Interpolation Utilities
Will‘s pick this week is Interpolation Utilities by Joe Henning. As most of you are probably aware, interpolation is the...

2 months ago

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Answered
How can I insert an image into MATLAB App Designer?
Yes, uiimage was added in a newer release, R2019a. Upgrading should be your best option but if it's not, you can add an axes an...

3 months ago | 0

| accepted

Answered
How to check MATLAB version and choose compatible functions?
Check out verLessThan.

3 months ago | 1

Answered
Undefined function or variable 'profile' in standalone application
It's not supported. What profile information do you want in your deployed application? https://www.mathworks.com/help/compiler...

3 months ago | 1

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